<style>
    .layuimini-main {background-color: #e6e6e6;display: flex;justify-content: space-evenly;}
    .iframe {width: 50vh;height: calc(100vh - 100px);background: #fff;}
</style>
<div class="layuimini-container">
    <div class="layuimini-main">
        <div>
            <iframe src="{:sysconfig('site', 'h5_url')}" frameborder="0" class="iframe"></iframe>
        </div>
        <div>
            <iframe src="{:sysconfig('site', 'h5_url_2')}" frameborder="0" class="iframe"></iframe>
        </div>
    </div>
</div>